android13/external/ltp/libs/libltpswap/libswap.c

66 lines
1.6 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2013 Oracle and/or its affiliates. All Rights Reserved.
* Author: Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>
*/
#include <errno.h>
#define TST_NO_DEFAULT_MAIN
#include "lapi/syscalls.h"
#include "tst_test.h"
#include "libswap.h"
/*
* Make a swap file
*/
int make_swapfile(const char *swapfile, int safe)
{
if (!tst_fs_has_free(".", sysconf(_SC_PAGESIZE) * 10, TST_BYTES))
tst_brk(TBROK, "Insufficient disk space to create swap file");
/* create file */
if (tst_fill_file(swapfile, 0, sysconf(_SC_PAGESIZE), 10) != 0)
tst_brk(TBROK, "Failed to create swapfile");
/* make the file swapfile */
const char *argv[2 + 1];
argv[0] = "mkswap";
argv[1] = swapfile;
argv[2] = NULL;
return tst_cmd(argv, "/dev/null", "/dev/null", safe);
}
/*
* Check swapon/swapoff support status of filesystems or files
* we are testing on.
*/
void is_swap_supported(const char *filename)
{
int fibmap = tst_fibmap(filename);
long fs_type = tst_fs_type(filename);
const char *fstype = tst_fs_type_name(fs_type);
int ret = make_swapfile(filename, 1);
if (ret != 0) {
if (fibmap == 1)
tst_brk(TCONF, "mkswap on %s not supported", fstype);
else
tst_brk(TFAIL, "mkswap on %s failed", fstype);
}
TEST(tst_syscall(__NR_swapon, filename, 0));
if (TST_RET == -1) {
if (fibmap == 1 && errno == EINVAL)
tst_brk(TCONF, "Swapfile on %s not implemented", fstype);
else
tst_brk(TFAIL | TTERRNO, "swapon on %s failed", fstype);
}
TEST(tst_syscall(__NR_swapoff, filename, 0));
if (TST_RET == -1)
tst_brk(TFAIL | TTERRNO, "swapoff on %s failed", fstype);
}